Just .5 miles from the Cleek Road end of this extension, and I hit a wall. I had ridden my bike from the Stronebrook Place trailhead, about 4.5 miles. Time to turn back. But first, let's hide one more cache.
You are looking for a bison tube. Please replace just as found.

Pbhag hc fvk fgrcf sebz gur yrsg raq. Oruvaq, haqre n ebpx.